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The manufacturer recommends the use of hirudin as anticoagulant for samples to be tested, but studies have shown that heparin is a good alternative. [8] [9] 300 μL of blood is needed for each analysis, and is diluted with the same amount of saline.
The ristocetin-induced platelet aggregation (RIPA) is an ex vivo assay for live platelet function.It measures platelet aggregation with the help of von Willebrand factor (vWF) and exogenous antibiotic ristocetin added in a graded fashion. [1]
Photomultiplier. Photomultiplier tubes (photomultipliers or PMTs for short) are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum.